Cranial osteology and systematic implications in Crotophaginae (Aves, Cuculidae)

Posso, Sérgio Roberto; Donatelli, Reginaldo José

doi:10.1046/j.1439-0469.2001.00178.x

Cited by 12 publications

(13 citation statements)

References 16 publications

(13 reference statements)

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“…On the other hand, it is similar in shape to the ectethmoid in Coraciidae, Brachypteraciidae, and Leptosomatidae and in Dendrocolaptidae (Passeriformes) according to Donatelli (1997), although it differs from the latter in the degree of development. It is also similar in shape to the ectethmoid in Cuculiformes, particularly species of the genus Crotophaga, as described by Posso and Donatelli (2001), and in Musophagiformes as described by Marceliano (1996).…”

Section: Discussion Skullmentioning

confidence: 55%

“…The development of the medial process of the mandible in Momotidae resembles those of certain New World Cuculiformes (Posso and Donatelli, 2001), as well as Galbulidae, except Jacamerops aurea (Donatelli, 1992), while also appearing similar to that of Columbina squammata (Andrela and Donatelli, 1995) in both development and shape. Burton (1984) named the medial process "the medial arm," observing it in an advanced stage of development in Alcedinidae, Momotidae, and Coraciidae, feeble development in Meropidae, Todidae, and Upupidae, and absence in Leptosomatidae, Phoeniculidae, Bucerotidae, and Piciformes (Galbulidae, Bucconidae, Capitonidae, Indicatoridae, Ramphastidae, Picidae).…”

Section: Mandiblementioning

confidence: 78%

“…The caudal extremity of the jugal arch in Momotidae has a dorsal curvature. In this respect they differ from Alcedinidae (Burton, 1984) and Picidae (Donatelli, 1996), but resemble Dendrocolaptes certhia (Dendrocolaptidae [Donatelli, 1997]) and New World Cuculiformes (Posso and Donatelli, 2001), in which the dorsal curvature is less pronounced.…”

Section: Discussion Skullmentioning

confidence: 98%

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Cranial osteology in momotidae (Aves: Coraciiformes)

Pascotto

Donatelli

2003

Journal of Morphology

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Momotidae (motmots) is found throughout Latin America between Mexico and northern Argentina. Given the absence of detailed studies of cranial osteology of Momotidae in the literature, this article presents a comprehensive description of the variation of the cranial osteology in all nine species of Momotidae and compares the results with published studies of other families of Coraciiformes and families in other orders. In addition, the cranial structures described are related to ecological and behavioral aspects of Momotidae. The cranial osteology of Baryphthengus ruficapillus is described in detail and compared with other species of Momotidae. The results indicate the presence in Momotidae of modified cranial structures, among which the most conspicuous are the frontal, lacrimal, squamosal, orbital, and laterosphenoid regions, as well as the palatine, upper jaw, pterygoid, and mandible.

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Section: Discussion Skullmentioning

confidence: 55%

Section: Mandiblementioning

confidence: 78%

Section: Discussion Skullmentioning

confidence: 98%

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Cranial osteology in momotidae (Aves: Coraciiformes)

Pascotto

Donatelli

2003

Journal of Morphology

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“…From this observation it can be inferred that only a small laterocaudal portion of the frontonasal suture is formed by the frontal, while most of this suture is formed by the frontal process of the nasal. Given the difficulty of locating the boundary of this suture with the nasal in adults, it probably should not be named 'frontolacrimal' in cuckoos, as cited in Posso & Donatelli (2001). When describing adult cuckoos, it would be advisable to use the term 'frontonasolacrimal suture.…”

Section: Resultsmentioning

confidence: 99%

Skull and Mandible Formation in the Cuckoo (Aves, Cuculidae): Contributions to the nomenclature in avian osteology and systematics

Posso¹,

Donatelli²

2006

European Journal of Morphology

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The study of the contributions of different bones to the formation of the skeleton in birds is necessary: (1) to establish homologies in comparative anatomy; (2) to delimit each bone structure correctly, mainly in relation to the skull and mandible where the bones are fused to each other in adults; and (3) to standardize nomenclature in avian osteology. In this paper at least one young specimen belonging to each sub-family of Cuculidae was examined in order to identify each bone in terms of boundaries and contributions to skull and mandible formation. These cuckoos specimens were also compared with adults and young of turacos and hoatzin. The results show little variation of skull and jaw among the young cuckoos studied compared with the variations among adult specimens. However, it provides new suggestions for the boundaries and nomenclature of certain osseous structures in the skull and mandible of birds, specifically fissura zona flexoria craniofacialis, prominetia frontoparietalis, crista temporalis transversa, processus squamosalis, fossa laterosphenoidalis, tuberculum laterosphenoidale and processus retroangularis. This study also provides more reliable homologies for use in cladistic analysis and above all it contributes to the phylogenetic position of Cuculidae within Neognathae, specifically the skull formation suggest that turacos and hoatzin are more similar to each other than either is to the cuckoos.

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“…Clamator glandarius (Cuculinae) presents the same pattern as Morococcyx, N. geoffroyi and Geococcyx. In Crotophaga (Posso and Donatelli, 2001; Figure 15), the nasal aperture is positioned ventrolaterally and the external aperture is small and circular. Beddard (1885) described a similar appearance of the nasal aperture in Scythrops (Cuculinae).…”

Section: Comparisons Of Primary Homologies and Systematic Implicationsmentioning

confidence: 99%

When decisions on homologous structures cause ambiguous taxa relationships: the Neomorphinae (Aves, Cuculidae) example

Posso

Donatelli

2010

Braz. J. Biol.

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The anatomy of Neomorphinae is poorly understood and the systematics of this sub-family is also the most controversial of the cuckoo taxa, mainly with regard to the systematic position of Tapera and Dromococcyx. In this study, morphological similarities of the Neomorphinae are discussed after a comprehensive description of the cranial osteology was conducted in seven species, embracing all the Neomorphinae genera. This description is followed by comparisons with other cuckoos in order to contribute to the anatomy and systematics of this sub-family. In this way, we provide illustrations that enable the osteological descriptions and the proposed primary homologies to be visualised and compared. Even though Neomorphinae species share many cranial osteological characteristics, there are some anatomical divergences that allowed us to divide them into two distinct groups: (Dromococcyx/ Tapera) and (Morococcyx(Neomorphus/Geococcyx)). After comparisons among all cuckoos this study suggests that Neomorphinae are more similar to Crotophaginae and Couinae than to other sub-families of cuckoos. Our results contrast with a recent phylogenetic study based on morphological features, mainly because alternative interpretations to the primary osteological homologies in this study grouped Tapera and Dromococcyx with Cuculinae. Although morphological studies can be used in phylogenetic analysis, we demonstrated here that decisions in the interpretation of the homologies can provide ambiguous results.Keywords: Neomorphinae, Cuculidae, cranial osteology, homology, phylogeny. Interpretações de homologias primárias e ambiguidade nas posições filogenéticas dos táxons: o exemplo nos Neomorphinae (Aves, Cuculidae) ResumoNeomorphinae é o grupo filogeneticamente mais controverso entre os cucos, em virtude da ambígua posição de Tapera e Dromococcyx, ainda, a anatomia do grupo é pouco compreendida. Neste estudo, as homologias primárias são discutidas em relação à osteologia craniana desta subfamília e comparadas aos demais Cuculiformes. O estudo propõe interpretações alternativas para homologias primárias dos caracteres cranianos em relação àquelas encontradas em filogenias com base nesta fonte de caracteres, na qual se observa Tapera e Dromococcyx agrupados dentro de Cuculinae. De modo a melhor demonstrar isto, os crânios foram descritos e ilustrados, apontando-se as homologias propostas e contrapondo-as com a literatura. Os resultados sugerem algumas variações entre os táxons que compõem a subfamília que permitem agrupá-los da seguinte maneira: (Dromococcyx/Tapera) e (Morococcyx(Neomorphus/ Geococcyx)). Ainda, comparando com as demais subfamílias, os Neomorphinae são similares a Crotophaginae e Couinae. Não obstante, os resultados demonstraram os táxons de Neomorphinae (incluindo Tapera e Dromococcyx) nitidamente mais similares entre si do que com qualquer outro grupo de cucos, indicando provável monofiletismo da subfamília, conforme sugerem os dados moleculares. No entanto a descrição da osteologia aqui apresentada difere do observ...

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Cranial osteology and systematic implications in Crotophaginae (Aves, Cuculidae)

Cited by 12 publications

References 16 publications

Cranial osteology in momotidae (Aves: Coraciiformes)

Cranial osteology in momotidae (Aves: Coraciiformes)

Skull and Mandible Formation in the Cuckoo (Aves, Cuculidae): Contributions to the nomenclature in avian osteology and systematics

When decisions on homologous structures cause ambiguous taxa relationships: the Neomorphinae (Aves, Cuculidae) example

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